Milking-machine.



P. IL'SCELEY. MILKING MACHINE. APPLIoATIN rmm snrm, 190s.

rPaitfan'ied Aug. 31,1909.

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WITNESS ES INVNTOR ATTORNEY 'ran nina.

FRANK H. sentar, or ooUNcnfia LUrrs,1oWA.

MILKING-MACHINE.

applicati@ flied September 2 To all whom it may concern:

` Be it known-that l, FRANK H. SCHLEY, a citizen of the United States,residing at Council Blu-ifs, in the county of Pottavvattamie and Stateof Iowa, have invented new and useful, Improvements in Milking-Machines, of which the following is a specification.

My invention relatesto an improvement in a machine for milking cours andother anmalsywhich improvement consists of a rotary valve arranged in amain frame in such a manneras to open `and close vacuum slots therebyproducing a pulsating action, and thereby being able to milk two cowssimultaneously.

The objectsy of my invention are; first, .to Ause .a rotary valve.arranged in a frame placed upona .milkcan from. which the air ,20 hasbeen pumped, in such a .manner as to produce a .pulsating action in .thetubes .at-

. t-ached .to theteat cup holders, which produces resultsin milkingsomew l .similar-,to the calf-sucking the corvysecon the use of onerotary .valvearrangedin suchamanner as vto .open the 'vacuum slots :in adevice n placed upona milk can from vwhich the air.'l haslbeen, uxnped,the .,result 'bengthat tia-.oI

` sans can e milked.simultaneously;'third,to.

` piramide an .improvement upon ,milking machinescwhich is so simpleinzitsconstruction and which is` inadeof suchmaterialas to. preventthe4milk from coming ,in Contact withpacking or other absorbent-substanceand drawingit throu `l1 a non-corrosive and non-contaminating va ve;fourth, toprovide an improvement upon `a milking machine which is simplein .its ,aonstruotionpbeing made up of but fou-r se arate pieces andconsequently quickly taken apart and easily cleaned. I attain theseobjects by a device.

illustrated in the accompanying drawing, consisting of one sheet inWhich- Figure l is a top view of the main casting which forms a coverfor the milk can. Fig.

2, is asectional view of the main casting and all its parts takenthrough the plane AA. TLike letters or references reter to like parts inthe two figures. v

5o Y This* device 'consists of but four pieces. "Thematerial used in itsconstruction may be any non-corrosive substances. l

.In the accompanying drawing P and P represent the two cutoff plugs. RVrepresent the rotary valve,

Specification of Letters Patent.

Patented Au l g. si, ieee. e 1908.- seria No. new,

RS and RS represent the release slots and VS and vVS represent thevacuum slots.

MP and MP represent the passages through which the milk flows from thev'teat cups through the vacuum slots VS into the can.

' E plate or frame that rests upon the top "of the can.

F and F represent the rim which goes down into the can.

The perfora'tions for the rotary valve RV and for the cut-ofi plugs Pand? are straight or" tapered and run directly through the coverinto thecan so as to drain all leakage /a-nd so as to be easily cleaned. IThemilk and E `represent the passages MP consist of straight holes bored.

directly through the perforations receiving the rotary valve RV and thecut-olf plugs P and P.

In the luse of this improvement upon a milking machine, any kind of amilk can made to fit the machine may be used. After thelmilking machineis placed upon thecan the air should be pumped from same -by anysuitable air pump, thereby forming a vacuum in thecanl" The milk canwith the milk machine, illustrated in thev accompanying drawing, is thenplaced between the two, -cows and the-teat cups attached. Any 'orm .ofmilk tubes may be used between. the milk passages MP and MP and the teatcups, the connection bein ,made between the/milkin machineupon t e passaAes MP and MP Wit aA cow o n each si'de o the machine. The main'-casting rests upon the top o-f the; vacuum milk, can and a rubber gasketis placed around the rim -F and F making tight joint n-the vacuum can.IThe 'rotary valve RV ismade to revolve continuously in the samedirection. This valve may be made to revolve by any suitable revolvingconnection, either in the form of a spring motor, afline shaft or otherproper means. When rotary valve RV is in position as in accompanyingsketch, the release slots RS and RS allow the air by atmosphericpressure to enter n the rotary valve RV, thence into milk passages MPand M1 through the connection through teat cups attached to thecows"teats. When the revolving valve RV 105 is thus made to revolve,vacuum slots VS '"and VS are brought in connection with milkpassage'sMP'and MP and the air which entered intol release slots RS andRS is drawn out through these vacuum slots VS and VS 110 into the vacuummilk can, bringing withl it bythis suction the milk, thus producing thesame results'as the sucking of a cow by a calf. When milking, the twoplugs P and l are turnedto allow a continuous flow of milk throughpassages MP and MP and the plugs -P and P to the rotary valve. IUien notmilking, the plugs P4 Iand P are turned at'right angles `to the positionshown in the diagram,'thu`s closing the milk passages MP and MP. Thefact that,.the cow Ais milked dry 4will be shown when the milk ceases toflow through the transparent milk tubes used in the connection betweenthc milk passages MP and MP and the teat cups.

The rotary valve RV is arranged to fill 'the perforation through the cancover -so that when the vacuum or suction on the milk can is olf itcan'be removed without unscrewing'or disconnecting by merely taking itout, likewise the cut-olf plugs P 'and P. The rotary valve has ashoulder or projection which covers the top surface of the perforationinto the can thus leaving no space, hole or projection to gather dirtand infection. The cut-off plugs P and P are preferably placed in atapered perforation through the can cover and are removable in the samemanner as the rotary valve RV. Upon removal of the rotary valve orcut-0E 'plug P the perforations may be easily cleaned, being smooth ontheir inner surface. The milk passages MP, being straight holesintersecting the perforations through the can cover, are also easilyswabbed or brushed out, the rotary valve RV havingvno holes but slotsupon its surface enable the same to .be easilu Washed; facility forcleaning these parts being an essential feature of this class ofapparatus. A f

l. In a milking machine, the combination lof a can cover having acylindrical perforation leading into the can, one or more straightpassages connecting with said cylindrical perforation, a removablerotary valve arranged to close and fill the said cylindricalperforation, slots upon theasnrface of said .of the can.

rotary valve arranged to alternately open and close said passagesleading from sald perforation to thecan and to the outside 2. In amilking machine, the combination of a can cover having a cylindricalperfora-` ytion leading into `the can, one or more straight passagesconnecting with said cylin-A drical perforation, a removable rotaryvalve arrangedto close and lill the said cylindrical perforation, slotsupon thesurface of said rotary valve arranged to alternately open andclose said passages leading from said perforation to the can and to theoutside of the can, and removable cut-ofil plugs in said straightpassages leading to said cylindrical of a can cover having a cylindricalperforation leading into the can, one or more straight passagesconnecting with said cylin drical perforation, a removable rotary valvearranged to close and'fll the said cylindrical perforation, slots uponthe surface. of lsaid rotary valve arranged to alternately open andclose said passages leadingfrom said perforation to the can and to theoutside of the can, and said passages into said cylindrical perforationthrough said can cover having projections adapted to' receive hoseconnections attached to said can cover.

'FRANK H. SCHLEY. Witnesses:

C. C. CLIrToN, HENRY PETERSON.

